1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
6 | |
9 | |
7 | #include "patchlevel.h" |
10 | #include "patchlevel.h" |
8 | |
11 | |
9 | #if USE_VALGRIND |
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10 | # include <valgrind/valgrind.h> |
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11 | #endif |
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12 | |
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13 | /* the maximum number of idle cctx that will be pooled */ |
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14 | #define MAX_IDLE_CCTX 8 |
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15 | |
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16 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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17 | (PERL_REVISION > (a) \ |
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18 | || (PERL_REVISION == (a) \ |
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19 | && (PERL_VERSION > (b) \ |
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20 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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21 | |
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22 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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23 | # ifndef PL_ppaddr |
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24 | # define PL_ppaddr ppaddr |
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25 | # endif |
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26 | # ifndef call_sv |
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27 | # define call_sv perl_call_sv |
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28 | # endif |
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29 | # ifndef get_sv |
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30 | # define get_sv perl_get_sv |
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31 | # endif |
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32 | # ifndef get_cv |
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33 | # define get_cv perl_get_cv |
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34 | # endif |
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35 | # ifndef IS_PADGV |
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36 | # define IS_PADGV(v) 0 |
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37 | # endif |
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38 | # ifndef IS_PADCONST |
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39 | # define IS_PADCONST(v) 0 |
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40 | # endif |
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41 | #endif |
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42 | |
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43 | /* 5.8.7 */ |
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44 | #ifndef SvRV_set |
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45 | # define SvRV_set(s,v) SvRV(s) = (v) |
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46 | #endif |
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47 | |
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48 | #include <stdio.h> |
12 | #include <stdio.h> |
49 | #include <errno.h> |
13 | #include <errno.h> |
50 | #include <assert.h> |
14 | #include <assert.h> |
51 | |
15 | #include <inttypes.h> /* portable stdint.h */ |
52 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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53 | # undef STACKGUARD |
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54 | #endif |
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55 | |
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56 | #ifndef STACKGUARD |
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57 | # define STACKGUARD 0 |
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58 | #endif |
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59 | |
16 | |
60 | #ifdef HAVE_MMAP |
17 | #ifdef HAVE_MMAP |
61 | # include <unistd.h> |
18 | # include <unistd.h> |
62 | # include <sys/mman.h> |
19 | # include <sys/mman.h> |
63 | # ifndef MAP_ANONYMOUS |
20 | # ifndef MAP_ANONYMOUS |
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78 | #else |
35 | #else |
79 | # define PAGESIZE 0 |
36 | # define PAGESIZE 0 |
80 | # define BOOT_PAGESIZE (void)0 |
37 | # define BOOT_PAGESIZE (void)0 |
81 | #endif |
38 | #endif |
82 | |
39 | |
83 | /* The next macro should declare a variable stacklevel that contains and approximation |
40 | #if CORO_USE_VALGRIND |
84 | * to the current C stack pointer. Its property is that it changes with each call |
41 | # include <valgrind/valgrind.h> |
85 | * and should be unique. */ |
42 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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43 | #else |
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44 | # define REGISTER_STACK(cctx,start,end) |
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45 | #endif |
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46 | |
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47 | /* the maximum number of idle cctx that will be pooled */ |
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48 | #define MAX_IDLE_CCTX 8 |
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49 | |
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50 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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51 | (PERL_REVISION > (a) \ |
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52 | || (PERL_REVISION == (a) \ |
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53 | && (PERL_VERSION > (b) \ |
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54 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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55 | |
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56 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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57 | # ifndef PL_ppaddr |
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58 | # define PL_ppaddr ppaddr |
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59 | # endif |
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60 | # ifndef call_sv |
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61 | # define call_sv perl_call_sv |
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62 | # endif |
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63 | # ifndef get_sv |
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64 | # define get_sv perl_get_sv |
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65 | # endif |
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66 | # ifndef get_cv |
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67 | # define get_cv perl_get_cv |
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68 | # endif |
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69 | # ifndef IS_PADGV |
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70 | # define IS_PADGV(v) 0 |
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71 | # endif |
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72 | # ifndef IS_PADCONST |
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73 | # define IS_PADCONST(v) 0 |
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74 | # endif |
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75 | #endif |
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76 | |
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77 | /* 5.8.7 */ |
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78 | #ifndef SvRV_set |
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79 | # define SvRV_set(s,v) SvRV(s) = (v) |
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80 | #endif |
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81 | |
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82 | /* 5.8.8 */ |
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83 | #ifndef GV_NOTQUAL |
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84 | # define GV_NOTQUAL 0 |
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85 | #endif |
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86 | #ifndef newSV |
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87 | # define newSV(l) NEWSV(0,l) |
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88 | #endif |
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89 | |
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90 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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91 | # undef CORO_STACKGUARD |
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92 | #endif |
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93 | |
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94 | #ifndef CORO_STACKGUARD |
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95 | # define CORO_STACKGUARD 0 |
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96 | #endif |
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97 | |
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98 | /* prefer perl internal functions over our own? */ |
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99 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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100 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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101 | #endif |
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102 | |
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103 | /* The next macros try to return the current stack pointer, in an as |
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104 | * portable way as possible. */ |
86 | #define dSTACKLEVEL int stacklevel |
105 | #define dSTACKLEVEL volatile char stacklevel |
87 | #define STACKLEVEL ((void *)&stacklevel) |
106 | #define STACKLEVEL ((void *)&stacklevel) |
88 | |
107 | |
89 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
108 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
90 | |
109 | |
91 | #if __GNUC__ >= 3 |
110 | #if __GNUC__ >= 3 |
92 | # define attribute(x) __attribute__(x) |
111 | # define attribute(x) __attribute__(x) |
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112 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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113 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
93 | #else |
114 | #else |
94 | # define attribute(x) |
115 | # define attribute(x) |
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116 | # define BARRIER |
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117 | # define expect(expr,value) (expr) |
95 | #endif |
118 | #endif |
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119 | |
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120 | #define expect_false(expr) expect ((expr) != 0, 0) |
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121 | #define expect_true(expr) expect ((expr) != 0, 1) |
96 | |
122 | |
97 | #define NOINLINE attribute ((noinline)) |
123 | #define NOINLINE attribute ((noinline)) |
98 | |
124 | |
99 | #include "CoroAPI.h" |
125 | #include "CoroAPI.h" |
100 | |
126 | |
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105 | #else |
131 | #else |
106 | # define LOCK (void)0 |
132 | # define LOCK (void)0 |
107 | # define UNLOCK (void)0 |
133 | # define UNLOCK (void)0 |
108 | #endif |
134 | #endif |
109 | |
135 | |
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136 | #define strpair(const) const, sizeof (const) - 1 |
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137 | |
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138 | /* helper storage struct for Coro::AIO */ |
110 | struct io_state |
139 | struct io_state |
111 | { |
140 | { |
112 | int errorno; |
141 | int errorno; |
113 | I32 laststype; |
142 | I32 laststype; |
114 | int laststatval; |
143 | int laststatval; |
115 | Stat_t statcache; |
144 | Stat_t statcache; |
116 | }; |
145 | }; |
117 | |
146 | |
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147 | static size_t coro_stacksize = CORO_STACKSIZE; |
118 | static struct CoroAPI coroapi; |
148 | static struct CoroAPI coroapi; |
119 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
149 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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150 | static JMPENV *main_top_env; |
120 | static HV *coro_state_stash, *coro_stash; |
151 | static HV *coro_state_stash, *coro_stash; |
121 | static SV *coro_mortal; /* will be freed after next transfer */ |
152 | static SV *coro_mortal; /* will be freed after next transfer */ |
122 | |
153 | |
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154 | static GV *irsgv; /* $/ */ |
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155 | static GV *stdoutgv; /* *STDOUT */ |
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156 | |
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157 | static HV *hv_sig; /* %SIG */ |
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158 | static SV *sv_diehook; |
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159 | static SV *sv_warnhook; |
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160 | |
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161 | /* async_pool helper stuff */ |
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162 | static SV *sv_pool_rss; |
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163 | static SV *sv_pool_size; |
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164 | static AV *av_async_pool; |
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165 | |
123 | static struct coro_cctx *cctx_first; |
166 | static struct coro_cctx *cctx_first; |
124 | static int cctx_count, cctx_idle; |
167 | static int cctx_count, cctx_idle; |
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168 | |
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169 | enum { |
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170 | CC_MAPPED = 0x01, |
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171 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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172 | CC_TRACE = 0x04, |
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173 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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174 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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175 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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176 | }; |
125 | |
177 | |
126 | /* this is a structure representing a c-level coroutine */ |
178 | /* this is a structure representing a c-level coroutine */ |
127 | typedef struct coro_cctx { |
179 | typedef struct coro_cctx { |
128 | struct coro_cctx *next; |
180 | struct coro_cctx *next; |
129 | |
181 | |
130 | /* the stack */ |
182 | /* the stack */ |
131 | void *sptr; |
183 | void *sptr; |
132 | long ssize; /* positive == mmap, otherwise malloc */ |
184 | size_t ssize; |
133 | |
185 | |
134 | /* cpu state */ |
186 | /* cpu state */ |
135 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
187 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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188 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
136 | JMPENV *top_env; |
189 | JMPENV *top_env; |
137 | coro_context cctx; |
190 | coro_context cctx; |
138 | |
191 | |
139 | int inuse; |
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140 | |
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141 | #if USE_VALGRIND |
192 | #if CORO_USE_VALGRIND |
142 | int valgrind_id; |
193 | int valgrind_id; |
143 | #endif |
194 | #endif |
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195 | unsigned char flags; |
144 | } coro_cctx; |
196 | } coro_cctx; |
145 | |
197 | |
146 | enum { |
198 | enum { |
147 | CF_RUNNING = 0x0001, /* coroutine is running */ |
199 | CF_RUNNING = 0x0001, /* coroutine is running */ |
148 | CF_READY = 0x0002, /* coroutine is ready */ |
200 | CF_READY = 0x0002, /* coroutine is ready */ |
149 | CF_NEW = 0x0004, /* ahs never been switched to */ |
201 | CF_NEW = 0x0004, /* has never been switched to */ |
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202 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
150 | }; |
203 | }; |
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204 | |
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205 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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206 | typedef struct { |
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207 | SV *defsv; |
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208 | AV *defav; |
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209 | SV *errsv; |
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210 | SV *irsgv; |
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211 | #define VAR(name,type) type name; |
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212 | # include "state.h" |
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213 | #undef VAR |
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214 | } perl_slots; |
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215 | |
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216 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
151 | |
217 | |
152 | /* this is a structure representing a perl-level coroutine */ |
218 | /* this is a structure representing a perl-level coroutine */ |
153 | struct coro { |
219 | struct coro { |
154 | /* the c coroutine allocated to this perl coroutine, if any */ |
220 | /* the c coroutine allocated to this perl coroutine, if any */ |
155 | coro_cctx *cctx; |
221 | coro_cctx *cctx; |
156 | |
222 | |
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223 | /* process data */ |
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224 | AV *mainstack; |
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225 | perl_slots *slot; /* basically the saved sp */ |
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226 | |
157 | /* data associated with this coroutine (initial args) */ |
227 | AV *args; /* data associated with this coroutine (initial args) */ |
158 | AV *args; |
228 | int refcnt; /* coroutines are refcounted, yes */ |
159 | int refcnt; |
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160 | int save; /* CORO_SAVE flags */ |
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161 | int flags; /* CF_ flags */ |
229 | int flags; /* CF_ flags */ |
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230 | HV *hv; /* the perl hash associated with this coro, if any */ |
162 | |
231 | |
163 | /* optionally saved, might be zero */ |
232 | /* statistics */ |
164 | AV *defav; /* @_ */ |
233 | int usecount; /* number of transfers to this coro */ |
165 | SV *defsv; /* $_ */ |
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166 | SV *errsv; /* $@ */ |
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167 | SV *irssv; /* $/ */ |
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168 | SV *irssv_sv; /* real $/ cache */ |
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169 | |
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170 | #define VAR(name,type) type name; |
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171 | # include "state.h" |
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172 | #undef VAR |
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173 | |
234 | |
174 | /* coro process data */ |
235 | /* coro process data */ |
175 | int prio; |
236 | int prio; |
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237 | SV *throw; /* exception to be thrown */ |
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238 | |
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239 | /* async_pool */ |
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240 | SV *saved_deffh; |
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241 | |
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242 | /* linked list */ |
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243 | struct coro *next, *prev; |
176 | }; |
244 | }; |
177 | |
245 | |
178 | typedef struct coro *Coro__State; |
246 | typedef struct coro *Coro__State; |
179 | typedef struct coro *Coro__State_or_hashref; |
247 | typedef struct coro *Coro__State_or_hashref; |
180 | |
248 | |
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249 | /** Coro ********************************************************************/ |
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250 | |
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251 | #define PRIO_MAX 3 |
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252 | #define PRIO_HIGH 1 |
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253 | #define PRIO_NORMAL 0 |
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254 | #define PRIO_LOW -1 |
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255 | #define PRIO_IDLE -3 |
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256 | #define PRIO_MIN -4 |
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257 | |
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258 | /* for Coro.pm */ |
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259 | static SV *coro_current; |
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260 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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261 | static int coro_nready; |
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262 | static struct coro *coro_first; |
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263 | |
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264 | /** lowlevel stuff **********************************************************/ |
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265 | |
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266 | static SV * |
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267 | coro_get_sv (const char *name, int create) |
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268 | { |
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269 | #if PERL_VERSION_ATLEAST (5,9,0) |
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270 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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271 | get_sv (name, create); |
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272 | #endif |
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273 | return get_sv (name, create); |
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274 | } |
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275 | |
181 | static AV * |
276 | static AV * |
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277 | coro_get_av (const char *name, int create) |
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278 | { |
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279 | #if PERL_VERSION_ATLEAST (5,9,0) |
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280 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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281 | get_av (name, create); |
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282 | #endif |
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283 | return get_av (name, create); |
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284 | } |
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285 | |
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286 | static HV * |
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287 | coro_get_hv (const char *name, int create) |
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288 | { |
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289 | #if PERL_VERSION_ATLEAST (5,9,0) |
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290 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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291 | get_hv (name, create); |
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292 | #endif |
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293 | return get_hv (name, create); |
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294 | } |
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295 | |
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296 | static AV * |
182 | coro_clone_padlist (CV *cv) |
297 | coro_clone_padlist (pTHX_ CV *cv) |
183 | { |
298 | { |
184 | AV *padlist = CvPADLIST (cv); |
299 | AV *padlist = CvPADLIST (cv); |
185 | AV *newpadlist, *newpad; |
300 | AV *newpadlist, *newpad; |
186 | |
301 | |
187 | newpadlist = newAV (); |
302 | newpadlist = newAV (); |
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199 | |
314 | |
200 | return newpadlist; |
315 | return newpadlist; |
201 | } |
316 | } |
202 | |
317 | |
203 | static void |
318 | static void |
204 | free_padlist (AV *padlist) |
319 | free_padlist (pTHX_ AV *padlist) |
205 | { |
320 | { |
206 | /* may be during global destruction */ |
321 | /* may be during global destruction */ |
207 | if (SvREFCNT (padlist)) |
322 | if (SvREFCNT (padlist)) |
208 | { |
323 | { |
209 | I32 i = AvFILLp (padlist); |
324 | I32 i = AvFILLp (padlist); |
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230 | AV *padlist; |
345 | AV *padlist; |
231 | AV *av = (AV *)mg->mg_obj; |
346 | AV *av = (AV *)mg->mg_obj; |
232 | |
347 | |
233 | /* casting is fun. */ |
348 | /* casting is fun. */ |
234 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
349 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
235 | free_padlist (padlist); |
350 | free_padlist (aTHX_ padlist); |
236 | |
351 | |
237 | SvREFCNT_dec (av); |
352 | SvREFCNT_dec (av); |
238 | |
353 | |
239 | return 0; |
354 | return 0; |
240 | } |
355 | } |
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248 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
363 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
249 | ? SvMAGIC (cv) \ |
364 | ? SvMAGIC (cv) \ |
250 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
365 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
251 | : 0 |
366 | : 0 |
252 | |
367 | |
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368 | static struct coro * |
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369 | SvSTATE_ (pTHX_ SV *coro) |
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370 | { |
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371 | HV *stash; |
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372 | MAGIC *mg; |
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373 | |
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374 | if (SvROK (coro)) |
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375 | coro = SvRV (coro); |
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376 | |
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377 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
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378 | croak ("Coro::State object required"); |
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379 | |
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380 | stash = SvSTASH (coro); |
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381 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
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382 | { |
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383 | /* very slow, but rare, check */ |
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384 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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385 | croak ("Coro::State object required"); |
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386 | } |
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387 | |
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388 | mg = CORO_MAGIC (coro); |
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389 | return (struct coro *)mg->mg_ptr; |
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390 | } |
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391 | |
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392 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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393 | |
253 | /* the next two functions merely cache the padlists */ |
394 | /* the next two functions merely cache the padlists */ |
254 | static void |
395 | static void |
255 | get_padlist (CV *cv) |
396 | get_padlist (pTHX_ CV *cv) |
256 | { |
397 | { |
257 | MAGIC *mg = CORO_MAGIC (cv); |
398 | MAGIC *mg = CORO_MAGIC (cv); |
258 | AV *av; |
399 | AV *av; |
259 | |
400 | |
260 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
401 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
261 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
402 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
262 | else |
403 | else |
263 | { |
404 | { |
264 | #if 0 |
405 | #if CORO_PREFER_PERL_FUNCTIONS |
265 | /* this is probably cleaner, but also slower? */ |
406 | /* this is probably cleaner, but also slower? */ |
266 | CV *cp = Perl_cv_clone (cv); |
407 | CV *cp = Perl_cv_clone (cv); |
267 | CvPADLIST (cv) = CvPADLIST (cp); |
408 | CvPADLIST (cv) = CvPADLIST (cp); |
268 | CvPADLIST (cp) = 0; |
409 | CvPADLIST (cp) = 0; |
269 | SvREFCNT_dec (cp); |
410 | SvREFCNT_dec (cp); |
270 | #else |
411 | #else |
271 | CvPADLIST (cv) = coro_clone_padlist (cv); |
412 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
272 | #endif |
413 | #endif |
273 | } |
414 | } |
274 | } |
415 | } |
275 | |
416 | |
276 | static void |
417 | static void |
277 | put_padlist (CV *cv) |
418 | put_padlist (pTHX_ CV *cv) |
278 | { |
419 | { |
279 | MAGIC *mg = CORO_MAGIC (cv); |
420 | MAGIC *mg = CORO_MAGIC (cv); |
280 | AV *av; |
421 | AV *av; |
281 | |
422 | |
282 | if (!mg) |
423 | if (expect_false (!mg)) |
283 | { |
424 | { |
284 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
425 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
285 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
426 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
286 | mg->mg_virtual = &vtbl_coro; |
427 | mg->mg_virtual = &vtbl_coro; |
287 | mg->mg_obj = (SV *)newAV (); |
428 | mg->mg_obj = (SV *)newAV (); |
288 | } |
429 | } |
289 | |
430 | |
290 | av = (AV *)mg->mg_obj; |
431 | av = (AV *)mg->mg_obj; |
291 | |
432 | |
292 | if (AvFILLp (av) >= AvMAX (av)) |
433 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
293 | av_extend (av, AvMAX (av) + 1); |
434 | av_extend (av, AvMAX (av) + 1); |
294 | |
435 | |
295 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
436 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
296 | } |
437 | } |
297 | |
438 | |
298 | #define SB do { |
439 | /** load & save, init *******************************************************/ |
299 | #define SE } while (0) |
|
|
300 | |
440 | |
301 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
|
|
302 | |
|
|
303 | static void |
441 | static void |
304 | load_perl (Coro__State c) |
442 | load_perl (pTHX_ Coro__State c) |
305 | { |
443 | { |
|
|
444 | perl_slots *slot = c->slot; |
|
|
445 | c->slot = 0; |
|
|
446 | |
|
|
447 | PL_mainstack = c->mainstack; |
|
|
448 | |
|
|
449 | GvSV (PL_defgv) = slot->defsv; |
|
|
450 | GvAV (PL_defgv) = slot->defav; |
|
|
451 | GvSV (PL_errgv) = slot->errsv; |
|
|
452 | GvSV (irsgv) = slot->irsgv; |
|
|
453 | |
306 | #define VAR(name,type) PL_ ## name = c->name; |
454 | #define VAR(name,type) PL_ ## name = slot->name; |
307 | # include "state.h" |
455 | # include "state.h" |
308 | #undef VAR |
456 | #undef VAR |
309 | |
457 | |
310 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
458 | /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/ |
311 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
459 | /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/ |
312 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
313 | if (c->irssv) |
|
|
314 | { |
|
|
315 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
316 | SvREFCNT_dec (c->irssv); |
|
|
317 | else |
|
|
318 | { |
|
|
319 | REPLACE_SV (PL_rs, c->irssv); |
|
|
320 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
321 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
322 | } |
|
|
323 | } |
|
|
324 | |
460 | |
325 | { |
461 | { |
326 | dSP; |
462 | dSP; |
|
|
463 | |
327 | CV *cv; |
464 | CV *cv; |
328 | |
465 | |
329 | /* now do the ugly restore mess */ |
466 | /* now do the ugly restore mess */ |
330 | while ((cv = (CV *)POPs)) |
467 | while (expect_true (cv = (CV *)POPs)) |
331 | { |
468 | { |
332 | put_padlist (cv); /* mark this padlist as available */ |
469 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
333 | CvDEPTH (cv) = PTR2IV (POPs); |
470 | CvDEPTH (cv) = PTR2IV (POPs); |
334 | CvPADLIST (cv) = (AV *)POPs; |
471 | CvPADLIST (cv) = (AV *)POPs; |
335 | } |
472 | } |
336 | |
473 | |
337 | PUTBACK; |
474 | PUTBACK; |
338 | } |
475 | } |
339 | } |
476 | } |
340 | |
477 | |
341 | static void |
478 | static void |
342 | save_perl (Coro__State c) |
479 | save_perl (pTHX_ Coro__State c) |
343 | { |
480 | { |
344 | { |
481 | { |
345 | dSP; |
482 | dSP; |
346 | I32 cxix = cxstack_ix; |
483 | I32 cxix = cxstack_ix; |
347 | PERL_CONTEXT *ccstk = cxstack; |
484 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
350 | /* |
487 | /* |
351 | * the worst thing you can imagine happens first - we have to save |
488 | * the worst thing you can imagine happens first - we have to save |
352 | * (and reinitialize) all cv's in the whole callchain :( |
489 | * (and reinitialize) all cv's in the whole callchain :( |
353 | */ |
490 | */ |
354 | |
491 | |
355 | EXTEND (SP, 3 + 1); |
|
|
356 | PUSHs (Nullsv); |
492 | XPUSHs (Nullsv); |
357 | /* this loop was inspired by pp_caller */ |
493 | /* this loop was inspired by pp_caller */ |
358 | for (;;) |
494 | for (;;) |
359 | { |
495 | { |
360 | while (cxix >= 0) |
496 | while (expect_true (cxix >= 0)) |
361 | { |
497 | { |
362 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
498 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
363 | |
499 | |
364 | if (CxTYPE (cx) == CXt_SUB) |
500 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
365 | { |
501 | { |
366 | CV *cv = cx->blk_sub.cv; |
502 | CV *cv = cx->blk_sub.cv; |
367 | |
503 | |
368 | if (CvDEPTH (cv)) |
504 | if (expect_true (CvDEPTH (cv))) |
369 | { |
505 | { |
370 | EXTEND (SP, 3); |
506 | EXTEND (SP, 3); |
371 | PUSHs ((SV *)CvPADLIST (cv)); |
507 | PUSHs ((SV *)CvPADLIST (cv)); |
372 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
508 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
373 | PUSHs ((SV *)cv); |
509 | PUSHs ((SV *)cv); |
374 | |
510 | |
375 | CvDEPTH (cv) = 0; |
511 | CvDEPTH (cv) = 0; |
376 | get_padlist (cv); |
512 | get_padlist (aTHX_ cv); |
377 | } |
513 | } |
378 | } |
514 | } |
379 | } |
515 | } |
380 | |
516 | |
381 | if (top_si->si_type == PERLSI_MAIN) |
517 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
382 | break; |
518 | break; |
383 | |
519 | |
384 | top_si = top_si->si_prev; |
520 | top_si = top_si->si_prev; |
385 | ccstk = top_si->si_cxstack; |
521 | ccstk = top_si->si_cxstack; |
386 | cxix = top_si->si_cxix; |
522 | cxix = top_si->si_cxix; |
387 | } |
523 | } |
388 | |
524 | |
389 | PUTBACK; |
525 | PUTBACK; |
390 | } |
526 | } |
391 | |
527 | |
392 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
528 | /* allocate some space on the context stack for our purposes */ |
393 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
529 | /* we manually unroll here, as usually 2 slots is enough */ |
394 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
530 | if (SLOT_COUNT >= 1) CXINC; |
395 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
531 | if (SLOT_COUNT >= 2) CXINC; |
|
|
532 | if (SLOT_COUNT >= 3) CXINC; |
|
|
533 | { |
|
|
534 | int i; |
|
|
535 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
536 | CXINC; |
|
|
537 | } |
|
|
538 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
396 | |
539 | |
|
|
540 | c->mainstack = PL_mainstack; |
|
|
541 | |
|
|
542 | { |
|
|
543 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
544 | |
|
|
545 | slot->defav = GvAV (PL_defgv); |
|
|
546 | slot->defsv = DEFSV; |
|
|
547 | slot->errsv = ERRSV; |
|
|
548 | slot->irsgv = GvSV (irsgv); |
|
|
549 | |
397 | #define VAR(name,type)c->name = PL_ ## name; |
550 | #define VAR(name,type) slot->name = PL_ ## name; |
398 | # include "state.h" |
551 | # include "state.h" |
399 | #undef VAR |
552 | #undef VAR |
|
|
553 | } |
400 | } |
554 | } |
401 | |
555 | |
402 | /* |
556 | /* |
403 | * allocate various perl stacks. This is an exact copy |
557 | * allocate various perl stacks. This is an exact copy |
404 | * of perl.c:init_stacks, except that it uses less memory |
558 | * of perl.c:init_stacks, except that it uses less memory |
405 | * on the (sometimes correct) assumption that coroutines do |
559 | * on the (sometimes correct) assumption that coroutines do |
406 | * not usually need a lot of stackspace. |
560 | * not usually need a lot of stackspace. |
407 | */ |
561 | */ |
408 | #if USE_PERL_INIT_STACKS |
562 | #if CORO_PREFER_PERL_FUNCTIONS |
409 | # define coro_init_stacks init_stacks |
563 | # define coro_init_stacks init_stacks |
410 | #else |
564 | #else |
411 | |
|
|
412 | static void |
565 | static void |
413 | coro_init_stacks () |
566 | coro_init_stacks (pTHX) |
414 | { |
567 | { |
415 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
568 | PL_curstackinfo = new_stackinfo(32, 8); |
416 | PL_curstackinfo->si_type = PERLSI_MAIN; |
569 | PL_curstackinfo->si_type = PERLSI_MAIN; |
417 | PL_curstack = PL_curstackinfo->si_stack; |
570 | PL_curstack = PL_curstackinfo->si_stack; |
418 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
571 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
419 | |
572 | |
420 | PL_stack_base = AvARRAY(PL_curstack); |
573 | PL_stack_base = AvARRAY(PL_curstack); |
421 | PL_stack_sp = PL_stack_base; |
574 | PL_stack_sp = PL_stack_base; |
422 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
575 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
423 | |
576 | |
424 | New(50,PL_tmps_stack,128,SV*); |
577 | New(50,PL_tmps_stack,32,SV*); |
425 | PL_tmps_floor = -1; |
578 | PL_tmps_floor = -1; |
426 | PL_tmps_ix = -1; |
579 | PL_tmps_ix = -1; |
427 | PL_tmps_max = 128; |
580 | PL_tmps_max = 32; |
428 | |
581 | |
429 | New(54,PL_markstack,32,I32); |
582 | New(54,PL_markstack,16,I32); |
430 | PL_markstack_ptr = PL_markstack; |
583 | PL_markstack_ptr = PL_markstack; |
431 | PL_markstack_max = PL_markstack + 32; |
584 | PL_markstack_max = PL_markstack + 16; |
432 | |
585 | |
433 | #ifdef SET_MARK_OFFSET |
586 | #ifdef SET_MARK_OFFSET |
434 | SET_MARK_OFFSET; |
587 | SET_MARK_OFFSET; |
435 | #endif |
588 | #endif |
436 | |
589 | |
437 | New(54,PL_scopestack,32,I32); |
590 | New(54,PL_scopestack,8,I32); |
438 | PL_scopestack_ix = 0; |
591 | PL_scopestack_ix = 0; |
439 | PL_scopestack_max = 32; |
592 | PL_scopestack_max = 8; |
440 | |
593 | |
441 | New(54,PL_savestack,64,ANY); |
594 | New(54,PL_savestack,24,ANY); |
442 | PL_savestack_ix = 0; |
595 | PL_savestack_ix = 0; |
443 | PL_savestack_max = 64; |
596 | PL_savestack_max = 24; |
444 | |
597 | |
445 | #if !PERL_VERSION_ATLEAST (5,9,0) |
598 | #if !PERL_VERSION_ATLEAST (5,9,0) |
446 | New(54,PL_retstack,16,OP*); |
599 | New(54,PL_retstack,4,OP*); |
447 | PL_retstack_ix = 0; |
600 | PL_retstack_ix = 0; |
448 | PL_retstack_max = 16; |
601 | PL_retstack_max = 4; |
449 | #endif |
602 | #endif |
450 | } |
603 | } |
|
|
604 | #endif |
451 | |
605 | |
452 | /* |
606 | /* |
453 | * destroy the stacks, the callchain etc... |
607 | * destroy the stacks, the callchain etc... |
454 | */ |
608 | */ |
455 | static void |
609 | static void |
456 | coro_destroy_stacks () |
610 | coro_destroy_stacks (pTHX) |
457 | { |
611 | { |
458 | if (!IN_DESTRUCT) |
|
|
459 | { |
|
|
460 | /* restore all saved variables and stuff */ |
|
|
461 | LEAVE_SCOPE (0); |
|
|
462 | assert (PL_tmps_floor == -1); |
|
|
463 | |
|
|
464 | /* free all temporaries */ |
|
|
465 | FREETMPS; |
|
|
466 | assert (PL_tmps_ix == -1); |
|
|
467 | |
|
|
468 | POPSTACK_TO (PL_mainstack); |
|
|
469 | } |
|
|
470 | |
|
|
471 | while (PL_curstackinfo->si_next) |
612 | while (PL_curstackinfo->si_next) |
472 | PL_curstackinfo = PL_curstackinfo->si_next; |
613 | PL_curstackinfo = PL_curstackinfo->si_next; |
473 | |
614 | |
474 | while (PL_curstackinfo) |
615 | while (PL_curstackinfo) |
475 | { |
616 | { |
… | |
… | |
489 | Safefree (PL_savestack); |
630 | Safefree (PL_savestack); |
490 | #if !PERL_VERSION_ATLEAST (5,9,0) |
631 | #if !PERL_VERSION_ATLEAST (5,9,0) |
491 | Safefree (PL_retstack); |
632 | Safefree (PL_retstack); |
492 | #endif |
633 | #endif |
493 | } |
634 | } |
494 | #endif |
|
|
495 | |
635 | |
496 | static void |
636 | static size_t |
497 | setup_coro (struct coro *coro) |
637 | coro_rss (pTHX_ struct coro *coro) |
|
|
638 | { |
|
|
639 | size_t rss = sizeof (*coro); |
|
|
640 | |
|
|
641 | if (coro->mainstack) |
|
|
642 | { |
|
|
643 | perl_slots tmp_slot; |
|
|
644 | perl_slots *slot; |
|
|
645 | |
|
|
646 | if (coro->flags & CF_RUNNING) |
|
|
647 | { |
|
|
648 | slot = &tmp_slot; |
|
|
649 | |
|
|
650 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
651 | # include "state.h" |
|
|
652 | #undef VAR |
|
|
653 | } |
|
|
654 | else |
|
|
655 | slot = coro->slot; |
|
|
656 | |
|
|
657 | rss += sizeof (slot->curstackinfo); |
|
|
658 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
659 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
660 | rss += slot->tmps_max * sizeof (SV *); |
|
|
661 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
662 | rss += slot->scopestack_max * sizeof (I32); |
|
|
663 | rss += slot->savestack_max * sizeof (ANY); |
|
|
664 | |
|
|
665 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
666 | rss += slot->retstack_max * sizeof (OP *); |
|
|
667 | #endif |
|
|
668 | } |
|
|
669 | |
|
|
670 | return rss; |
|
|
671 | } |
|
|
672 | |
|
|
673 | /** coroutine stack handling ************************************************/ |
|
|
674 | |
|
|
675 | static void |
|
|
676 | coro_setup (pTHX_ struct coro *coro) |
498 | { |
677 | { |
499 | /* |
678 | /* |
500 | * emulate part of the perl startup here. |
679 | * emulate part of the perl startup here. |
501 | */ |
680 | */ |
502 | |
|
|
503 | coro_init_stacks (); |
681 | coro_init_stacks (aTHX); |
504 | |
682 | |
|
|
683 | PL_runops = RUNOPS_DEFAULT; |
505 | PL_curcop = &PL_compiling; |
684 | PL_curcop = &PL_compiling; |
506 | PL_in_eval = EVAL_NULL; |
685 | PL_in_eval = EVAL_NULL; |
|
|
686 | PL_comppad = 0; |
507 | PL_curpm = 0; |
687 | PL_curpm = 0; |
|
|
688 | PL_curpad = 0; |
508 | PL_localizing = 0; |
689 | PL_localizing = 0; |
509 | PL_dirty = 0; |
690 | PL_dirty = 0; |
510 | PL_restartop = 0; |
691 | PL_restartop = 0; |
|
|
692 | PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
693 | PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
694 | |
|
|
695 | GvSV (PL_defgv) = newSV (0); |
|
|
696 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
697 | GvSV (PL_errgv) = newSV (0); |
|
|
698 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
699 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
700 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
511 | |
701 | |
512 | { |
702 | { |
513 | dSP; |
703 | dSP; |
514 | LOGOP myop; |
704 | LOGOP myop; |
515 | |
705 | |
516 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
517 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
518 | |
|
|
519 | Zero (&myop, 1, LOGOP); |
706 | Zero (&myop, 1, LOGOP); |
520 | myop.op_next = Nullop; |
707 | myop.op_next = Nullop; |
521 | myop.op_flags = OPf_WANT_VOID; |
708 | myop.op_flags = OPf_WANT_VOID; |
522 | |
709 | |
523 | PUSHMARK (SP); |
710 | PUSHMARK (SP); |
524 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
711 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
525 | PUTBACK; |
712 | PUTBACK; |
526 | PL_op = (OP *)&myop; |
713 | PL_op = (OP *)&myop; |
527 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
714 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
528 | SPAGAIN; |
715 | SPAGAIN; |
529 | } |
716 | } |
530 | |
717 | |
531 | ENTER; /* necessary e.g. for dounwind */ |
718 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
719 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
720 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
721 | * so we ENTER here for symmetry |
|
|
722 | */ |
|
|
723 | ENTER; |
532 | } |
724 | } |
533 | |
725 | |
534 | static void |
726 | static void |
|
|
727 | coro_destroy (pTHX_ struct coro *coro) |
|
|
728 | { |
|
|
729 | if (!IN_DESTRUCT) |
|
|
730 | { |
|
|
731 | /* restore all saved variables and stuff */ |
|
|
732 | LEAVE_SCOPE (0); |
|
|
733 | assert (PL_tmps_floor == -1); |
|
|
734 | |
|
|
735 | /* free all temporaries */ |
|
|
736 | FREETMPS; |
|
|
737 | assert (PL_tmps_ix == -1); |
|
|
738 | |
|
|
739 | /* unwind all extra stacks */ |
|
|
740 | POPSTACK_TO (PL_mainstack); |
|
|
741 | |
|
|
742 | /* unwind main stack */ |
|
|
743 | dounwind (-1); |
|
|
744 | } |
|
|
745 | |
|
|
746 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
747 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
748 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
749 | SvREFCNT_dec (PL_defoutgv); |
|
|
750 | SvREFCNT_dec (PL_rs); |
|
|
751 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
752 | |
|
|
753 | SvREFCNT_dec (PL_diehook); |
|
|
754 | SvREFCNT_dec (PL_warnhook); |
|
|
755 | |
|
|
756 | SvREFCNT_dec (coro->saved_deffh); |
|
|
757 | SvREFCNT_dec (coro->throw); |
|
|
758 | |
|
|
759 | coro_destroy_stacks (aTHX); |
|
|
760 | } |
|
|
761 | |
|
|
762 | static void |
535 | free_coro_mortal () |
763 | free_coro_mortal (pTHX) |
536 | { |
764 | { |
537 | if (coro_mortal) |
765 | if (expect_true (coro_mortal)) |
538 | { |
766 | { |
539 | SvREFCNT_dec (coro_mortal); |
767 | SvREFCNT_dec (coro_mortal); |
540 | coro_mortal = 0; |
768 | coro_mortal = 0; |
541 | } |
769 | } |
542 | } |
770 | } |
543 | |
771 | |
|
|
772 | static int |
|
|
773 | runops_trace (pTHX) |
|
|
774 | { |
|
|
775 | COP *oldcop = 0; |
|
|
776 | int oldcxix = -2; |
|
|
777 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
778 | coro_cctx *cctx = coro->cctx; |
|
|
779 | |
|
|
780 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
781 | { |
|
|
782 | PERL_ASYNC_CHECK (); |
|
|
783 | |
|
|
784 | if (cctx->flags & CC_TRACE_ALL) |
|
|
785 | { |
|
|
786 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
787 | { |
|
|
788 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
789 | SV **bot, **top; |
|
|
790 | AV *av = newAV (); /* return values */ |
|
|
791 | SV **cb; |
|
|
792 | dSP; |
|
|
793 | |
|
|
794 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
795 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
796 | if (isGV (gv)) |
|
|
797 | gv_efullname3 (fullname, gv, 0); |
|
|
798 | |
|
|
799 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
800 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
801 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
802 | : bot; |
|
|
803 | |
|
|
804 | av_extend (av, top - bot); |
|
|
805 | while (bot < top) |
|
|
806 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
807 | |
|
|
808 | PL_runops = RUNOPS_DEFAULT; |
|
|
809 | ENTER; |
|
|
810 | SAVETMPS; |
|
|
811 | EXTEND (SP, 3); |
|
|
812 | PUSHMARK (SP); |
|
|
813 | PUSHs (&PL_sv_no); |
|
|
814 | PUSHs (fullname); |
|
|
815 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
816 | PUTBACK; |
|
|
817 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
818 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
819 | SPAGAIN; |
|
|
820 | FREETMPS; |
|
|
821 | LEAVE; |
|
|
822 | PL_runops = runops_trace; |
|
|
823 | } |
|
|
824 | |
|
|
825 | if (oldcop != PL_curcop) |
|
|
826 | { |
|
|
827 | oldcop = PL_curcop; |
|
|
828 | |
|
|
829 | if (PL_curcop != &PL_compiling) |
|
|
830 | { |
|
|
831 | SV **cb; |
|
|
832 | |
|
|
833 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
834 | { |
|
|
835 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
836 | |
|
|
837 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
838 | { |
|
|
839 | runops_proc_t old_runops = PL_runops; |
|
|
840 | dSP; |
|
|
841 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
842 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
843 | |
|
|
844 | if (isGV (gv)) |
|
|
845 | gv_efullname3 (fullname, gv, 0); |
|
|
846 | |
|
|
847 | PL_runops = RUNOPS_DEFAULT; |
|
|
848 | ENTER; |
|
|
849 | SAVETMPS; |
|
|
850 | EXTEND (SP, 3); |
|
|
851 | PUSHMARK (SP); |
|
|
852 | PUSHs (&PL_sv_yes); |
|
|
853 | PUSHs (fullname); |
|
|
854 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
855 | PUTBACK; |
|
|
856 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
857 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
858 | SPAGAIN; |
|
|
859 | FREETMPS; |
|
|
860 | LEAVE; |
|
|
861 | PL_runops = runops_trace; |
|
|
862 | } |
|
|
863 | |
|
|
864 | oldcxix = cxstack_ix; |
|
|
865 | } |
|
|
866 | |
|
|
867 | if (cctx->flags & CC_TRACE_LINE) |
|
|
868 | { |
|
|
869 | dSP; |
|
|
870 | |
|
|
871 | PL_runops = RUNOPS_DEFAULT; |
|
|
872 | ENTER; |
|
|
873 | SAVETMPS; |
|
|
874 | EXTEND (SP, 3); |
|
|
875 | PL_runops = RUNOPS_DEFAULT; |
|
|
876 | PUSHMARK (SP); |
|
|
877 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
878 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
879 | PUTBACK; |
|
|
880 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
|
|
881 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
882 | SPAGAIN; |
|
|
883 | FREETMPS; |
|
|
884 | LEAVE; |
|
|
885 | PL_runops = runops_trace; |
|
|
886 | } |
|
|
887 | } |
|
|
888 | } |
|
|
889 | } |
|
|
890 | } |
|
|
891 | |
|
|
892 | TAINT_NOT; |
|
|
893 | return 0; |
|
|
894 | } |
|
|
895 | |
544 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
896 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
897 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
898 | /* during execution of a perl program */ |
545 | static void NOINLINE |
899 | static void NOINLINE |
546 | prepare_cctx (coro_cctx *cctx) |
900 | cctx_prepare (pTHX_ coro_cctx *cctx) |
547 | { |
901 | { |
548 | dSP; |
902 | dSP; |
549 | LOGOP myop; |
903 | LOGOP myop; |
|
|
904 | |
|
|
905 | PL_top_env = &PL_start_env; |
|
|
906 | |
|
|
907 | if (cctx->flags & CC_TRACE) |
|
|
908 | PL_runops = runops_trace; |
550 | |
909 | |
551 | Zero (&myop, 1, LOGOP); |
910 | Zero (&myop, 1, LOGOP); |
552 | myop.op_next = PL_op; |
911 | myop.op_next = PL_op; |
553 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
912 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
554 | |
913 | |
… | |
… | |
560 | PL_op = (OP *)&myop; |
919 | PL_op = (OP *)&myop; |
561 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
920 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
562 | SPAGAIN; |
921 | SPAGAIN; |
563 | } |
922 | } |
564 | |
923 | |
|
|
924 | /* |
|
|
925 | * this is a _very_ stripped down perl interpreter ;) |
|
|
926 | */ |
565 | static void |
927 | static void |
566 | coro_run (void *arg) |
928 | cctx_run (void *arg) |
567 | { |
929 | { |
|
|
930 | dTHX; |
|
|
931 | |
568 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
932 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
569 | UNLOCK; |
933 | UNLOCK; |
570 | |
934 | |
571 | /* |
935 | /* we now skip the entersub that lead to transfer() */ |
572 | * this is a _very_ stripped down perl interpreter ;) |
936 | PL_op = PL_op->op_next; |
573 | */ |
|
|
574 | PL_top_env = &PL_start_env; |
|
|
575 | |
937 | |
576 | /* inject call to cctx_init */ |
938 | /* inject a fake subroutine call to cctx_init */ |
577 | prepare_cctx ((coro_cctx *)arg); |
939 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
578 | |
940 | |
579 | /* somebody will hit me for both perl_run and PL_restartop */ |
941 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
580 | PL_restartop = PL_op; |
942 | PL_restartop = PL_op; |
581 | perl_run (PL_curinterp); |
943 | perl_run (PL_curinterp); |
582 | |
944 | |
583 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
945 | /* |
584 | abort (); |
946 | * If perl-run returns we assume exit() was being called or the coro |
|
|
947 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
948 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
949 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
950 | * coroutine as Coro has no such concept |
|
|
951 | */ |
|
|
952 | PL_top_env = main_top_env; |
|
|
953 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
585 | } |
954 | } |
586 | |
955 | |
587 | static coro_cctx * |
956 | static coro_cctx * |
588 | cctx_new () |
957 | cctx_new () |
589 | { |
958 | { |
590 | coro_cctx *cctx; |
959 | coro_cctx *cctx; |
|
|
960 | void *stack_start; |
|
|
961 | size_t stack_size; |
591 | |
962 | |
592 | ++cctx_count; |
963 | ++cctx_count; |
593 | |
964 | |
594 | Newz (0, cctx, 1, coro_cctx); |
965 | Newz (0, cctx, 1, coro_cctx); |
595 | |
966 | |
596 | #if HAVE_MMAP |
967 | #if HAVE_MMAP |
597 | |
|
|
598 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
968 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
599 | /* mmap supposedly does allocate-on-write for us */ |
969 | /* mmap supposedly does allocate-on-write for us */ |
600 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
970 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
601 | |
971 | |
602 | if (cctx->sptr == (void *)-1) |
972 | if (cctx->sptr != (void *)-1) |
603 | { |
|
|
604 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
605 | _exit (EXIT_FAILURE); |
|
|
606 | } |
973 | { |
607 | |
|
|
608 | # if STACKGUARD |
974 | # if CORO_STACKGUARD |
609 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
975 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
610 | # endif |
976 | # endif |
|
|
977 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
978 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
979 | cctx->flags |= CC_MAPPED; |
|
|
980 | } |
|
|
981 | else |
|
|
982 | #endif |
|
|
983 | { |
|
|
984 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
985 | New (0, cctx->sptr, coro_stacksize, long); |
611 | |
986 | |
612 | #else |
|
|
613 | |
|
|
614 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
615 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
616 | |
|
|
617 | if (!cctx->sptr) |
987 | if (!cctx->sptr) |
618 | { |
988 | { |
619 | perror ("FATAL: unable to malloc stack for coroutine"); |
989 | perror ("FATAL: unable to allocate stack for coroutine"); |
620 | _exit (EXIT_FAILURE); |
990 | _exit (EXIT_FAILURE); |
621 | } |
991 | } |
622 | |
992 | |
623 | #endif |
993 | stack_start = cctx->sptr; |
|
|
994 | stack_size = cctx->ssize; |
|
|
995 | } |
624 | |
996 | |
625 | #if USE_VALGRIND |
997 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
626 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
998 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
627 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
628 | cctx->ssize + (char *)cctx->sptr |
|
|
629 | ); |
|
|
630 | #endif |
|
|
631 | |
|
|
632 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
633 | |
999 | |
634 | return cctx; |
1000 | return cctx; |
635 | } |
1001 | } |
636 | |
1002 | |
637 | static void |
1003 | static void |
… | |
… | |
640 | if (!cctx) |
1006 | if (!cctx) |
641 | return; |
1007 | return; |
642 | |
1008 | |
643 | --cctx_count; |
1009 | --cctx_count; |
644 | |
1010 | |
645 | #if USE_VALGRIND |
1011 | #if CORO_USE_VALGRIND |
646 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1012 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
647 | #endif |
1013 | #endif |
648 | |
1014 | |
649 | #if HAVE_MMAP |
1015 | #if HAVE_MMAP |
|
|
1016 | if (cctx->flags & CC_MAPPED) |
650 | munmap (cctx->sptr, cctx->ssize); |
1017 | munmap (cctx->sptr, cctx->ssize); |
651 | #else |
1018 | else |
|
|
1019 | #endif |
652 | Safefree (cctx->sptr); |
1020 | Safefree (cctx->sptr); |
653 | #endif |
|
|
654 | |
1021 | |
655 | Safefree (cctx); |
1022 | Safefree (cctx); |
656 | } |
1023 | } |
657 | |
1024 | |
|
|
1025 | /* wether this cctx should be destructed */ |
|
|
1026 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1027 | |
658 | static coro_cctx * |
1028 | static coro_cctx * |
659 | cctx_get () |
1029 | cctx_get (pTHX) |
660 | { |
1030 | { |
661 | coro_cctx *cctx; |
1031 | while (expect_true (cctx_first)) |
662 | |
|
|
663 | if (cctx_first) |
|
|
664 | { |
1032 | { |
665 | cctx = cctx_first; |
1033 | coro_cctx *cctx = cctx_first; |
666 | cctx_first = cctx->next; |
1034 | cctx_first = cctx->next; |
667 | --cctx_idle; |
1035 | --cctx_idle; |
668 | } |
1036 | |
669 | else |
1037 | if (expect_true (!CCTX_EXPIRED (cctx))) |
670 | { |
1038 | return cctx; |
671 | cctx = cctx_new (); |
1039 | |
672 | PL_op = PL_op->op_next; |
1040 | cctx_destroy (cctx); |
673 | } |
1041 | } |
674 | |
1042 | |
675 | return cctx; |
1043 | return cctx_new (); |
676 | } |
1044 | } |
677 | |
1045 | |
678 | static void |
1046 | static void |
679 | cctx_put (coro_cctx *cctx) |
1047 | cctx_put (coro_cctx *cctx) |
680 | { |
1048 | { |
681 | /* free another cctx if overlimit */ |
1049 | /* free another cctx if overlimit */ |
682 | if (cctx_idle >= MAX_IDLE_CCTX) |
1050 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
683 | { |
1051 | { |
684 | coro_cctx *first = cctx_first; |
1052 | coro_cctx *first = cctx_first; |
685 | cctx_first = first->next; |
1053 | cctx_first = first->next; |
686 | --cctx_idle; |
1054 | --cctx_idle; |
687 | |
1055 | |
688 | assert (!first->inuse); |
|
|
689 | cctx_destroy (first); |
1056 | cctx_destroy (first); |
690 | } |
1057 | } |
691 | |
1058 | |
692 | ++cctx_idle; |
1059 | ++cctx_idle; |
693 | cctx->next = cctx_first; |
1060 | cctx->next = cctx_first; |
694 | cctx_first = cctx; |
1061 | cctx_first = cctx; |
695 | } |
1062 | } |
696 | |
1063 | |
697 | /* never call directly, always through the coro_state_transfer global variable */ |
1064 | /** coroutine switching *****************************************************/ |
|
|
1065 | |
|
|
1066 | static void |
|
|
1067 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1068 | { |
|
|
1069 | if (expect_true (prev != next)) |
|
|
1070 | { |
|
|
1071 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1072 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1073 | |
|
|
1074 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1075 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1076 | |
|
|
1077 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1078 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1079 | |
|
|
1080 | if ( |
|
|
1081 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
1082 | expect_false (PL_parser) |
|
|
1083 | #else |
|
|
1084 | expect_false (PL_lex_state != LEX_NOTPARSING) |
|
|
1085 | #endif |
|
|
1086 | ) |
|
|
1087 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
1088 | } |
|
|
1089 | } |
|
|
1090 | |
|
|
1091 | /* always use the TRANSFER macro */ |
698 | static void NOINLINE |
1092 | static void NOINLINE |
699 | transfer (struct coro *prev, struct coro *next) |
1093 | transfer (pTHX_ struct coro *prev, struct coro *next) |
700 | { |
1094 | { |
701 | dSTACKLEVEL; |
1095 | dSTACKLEVEL; |
702 | |
1096 | |
703 | /* sometimes transfer is only called to set idle_sp */ |
1097 | /* sometimes transfer is only called to set idle_sp */ |
704 | if (!next) |
1098 | if (expect_false (!next)) |
705 | { |
1099 | { |
706 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1100 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
707 | assert (((coro_cctx *)prev)->top_env = PL_top_env); /* just for the side effetc when assert is enabled */ |
1101 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
708 | } |
1102 | } |
709 | else if (prev != next) |
1103 | else if (expect_true (prev != next)) |
710 | { |
1104 | { |
711 | coro_cctx *prev__cctx; |
1105 | coro_cctx *prev__cctx; |
712 | |
1106 | |
713 | if (prev->flags & CF_NEW) |
1107 | if (expect_false (prev->flags & CF_NEW)) |
714 | { |
1108 | { |
715 | /* create a new empty context */ |
1109 | /* create a new empty context */ |
716 | Newz (0, prev->cctx, 1, coro_cctx); |
1110 | Newz (0, prev->cctx, 1, coro_cctx); |
717 | prev->cctx->inuse = 1; |
|
|
718 | prev->flags &= ~CF_NEW; |
1111 | prev->flags &= ~CF_NEW; |
719 | prev->flags |= CF_RUNNING; |
1112 | prev->flags |= CF_RUNNING; |
720 | } |
1113 | } |
721 | |
1114 | |
722 | /*TODO: must not croak here */ |
|
|
723 | if (!prev->flags & CF_RUNNING) |
|
|
724 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
725 | |
|
|
726 | if (next->flags & CF_RUNNING) |
|
|
727 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
728 | |
|
|
729 | prev->flags &= ~CF_RUNNING; |
1115 | prev->flags &= ~CF_RUNNING; |
730 | next->flags |= CF_RUNNING; |
1116 | next->flags |= CF_RUNNING; |
731 | |
1117 | |
732 | LOCK; |
1118 | LOCK; |
733 | |
1119 | |
734 | if (next->flags & CF_NEW) |
1120 | if (expect_false (next->flags & CF_NEW)) |
735 | { |
1121 | { |
736 | /* need to start coroutine */ |
1122 | /* need to start coroutine */ |
737 | next->flags &= ~CF_NEW; |
1123 | next->flags &= ~CF_NEW; |
738 | /* first get rid of the old state */ |
1124 | /* first get rid of the old state */ |
739 | save_perl (prev); |
1125 | save_perl (aTHX_ prev); |
740 | /* setup coroutine call */ |
1126 | /* setup coroutine call */ |
741 | setup_coro (next); |
1127 | coro_setup (aTHX_ next); |
742 | /* need a new stack */ |
|
|
743 | assert (!next->cctx); |
|
|
744 | } |
1128 | } |
745 | else |
1129 | else |
746 | { |
1130 | { |
747 | /* coroutine already started */ |
1131 | /* coroutine already started */ |
748 | save_perl (prev); |
1132 | save_perl (aTHX_ prev); |
749 | load_perl (next); |
1133 | load_perl (aTHX_ next); |
750 | } |
1134 | } |
751 | |
1135 | |
752 | prev__cctx = prev->cctx; |
1136 | prev__cctx = prev->cctx; |
753 | |
1137 | |
754 | /* possibly "free" the cctx */ |
1138 | /* possibly "free" the cctx */ |
755 | if (prev__cctx->idle_sp == STACKLEVEL) |
1139 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
756 | { |
1140 | { |
757 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1141 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
758 | assert (PL_top_env == prev__cctx->top_env); |
1142 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
759 | |
1143 | |
760 | prev->cctx = 0; |
1144 | prev->cctx = 0; |
761 | |
1145 | |
|
|
1146 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1147 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1148 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1149 | if (!next->cctx) |
|
|
1150 | next->cctx = cctx_get (aTHX); |
|
|
1151 | |
762 | cctx_put (prev__cctx); |
1152 | cctx_put (prev__cctx); |
763 | prev__cctx->inuse = 0; |
|
|
764 | } |
1153 | } |
765 | |
1154 | |
|
|
1155 | ++next->usecount; |
|
|
1156 | |
766 | if (!next->cctx) |
1157 | if (expect_true (!next->cctx)) |
767 | { |
|
|
768 | next->cctx = cctx_get (); |
1158 | next->cctx = cctx_get (aTHX); |
769 | assert (!next->cctx->inuse); |
|
|
770 | next->cctx->inuse = 1; |
|
|
771 | } |
|
|
772 | |
1159 | |
773 | if (prev__cctx != next->cctx) |
1160 | if (expect_false (prev__cctx != next->cctx)) |
774 | { |
1161 | { |
775 | prev__cctx->top_env = PL_top_env; |
1162 | prev__cctx->top_env = PL_top_env; |
776 | PL_top_env = next->cctx->top_env; |
1163 | PL_top_env = next->cctx->top_env; |
777 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1164 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
778 | } |
1165 | } |
779 | |
1166 | |
780 | free_coro_mortal (); |
1167 | free_coro_mortal (aTHX); |
781 | |
|
|
782 | UNLOCK; |
1168 | UNLOCK; |
|
|
1169 | |
|
|
1170 | if (expect_false (prev->throw || next->throw)) |
|
|
1171 | { |
|
|
1172 | struct coro *coro = SvSTATE (coro_current); |
|
|
1173 | |
|
|
1174 | if (coro->throw) |
|
|
1175 | { |
|
|
1176 | SV *exception = coro->throw; |
|
|
1177 | coro->throw = 0; |
|
|
1178 | sv_setsv (ERRSV, exception); |
|
|
1179 | croak (0); |
|
|
1180 | } |
|
|
1181 | } |
783 | } |
1182 | } |
784 | } |
1183 | } |
785 | |
1184 | |
786 | struct transfer_args |
1185 | struct transfer_args |
787 | { |
1186 | { |
788 | struct coro *prev, *next; |
1187 | struct coro *prev, *next; |
789 | }; |
1188 | }; |
790 | |
1189 | |
791 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1190 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1191 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
792 | |
1192 | |
|
|
1193 | /** high level stuff ********************************************************/ |
|
|
1194 | |
793 | static void |
1195 | static int |
794 | coro_state_destroy (struct coro *coro) |
1196 | coro_state_destroy (pTHX_ struct coro *coro) |
795 | { |
1197 | { |
796 | if (coro->refcnt--) |
1198 | if (coro->flags & CF_DESTROYED) |
797 | return; |
1199 | return 0; |
|
|
1200 | |
|
|
1201 | coro->flags |= CF_DESTROYED; |
|
|
1202 | |
|
|
1203 | if (coro->flags & CF_READY) |
|
|
1204 | { |
|
|
1205 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1206 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1207 | LOCK; |
|
|
1208 | --coro_nready; |
|
|
1209 | UNLOCK; |
|
|
1210 | } |
|
|
1211 | else |
|
|
1212 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
798 | |
1213 | |
799 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1214 | if (coro->mainstack && coro->mainstack != main_mainstack) |
800 | { |
1215 | { |
801 | struct coro temp; |
1216 | struct coro temp; |
802 | Zero (&temp, 1, struct coro); |
|
|
803 | temp.save = CORO_SAVE_ALL; |
|
|
804 | |
1217 | |
805 | if (coro->flags & CF_RUNNING) |
1218 | if (coro->flags & CF_RUNNING) |
806 | croak ("FATAL: tried to destroy currently running coroutine"); |
1219 | croak ("FATAL: tried to destroy currently running coroutine"); |
807 | |
1220 | |
808 | save_perl (&temp); |
1221 | save_perl (aTHX_ &temp); |
809 | load_perl (coro); |
1222 | load_perl (aTHX_ coro); |
810 | |
1223 | |
811 | coro_destroy_stacks (); |
1224 | coro_destroy (aTHX_ coro); |
812 | |
1225 | |
813 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
1226 | load_perl (aTHX_ &temp); |
814 | |
1227 | |
815 | coro->mainstack = 0; |
1228 | coro->slot = 0; |
816 | } |
1229 | } |
817 | |
1230 | |
818 | cctx_destroy (coro->cctx); |
1231 | cctx_destroy (coro->cctx); |
819 | SvREFCNT_dec (coro->args); |
1232 | SvREFCNT_dec (coro->args); |
820 | Safefree (coro); |
1233 | |
|
|
1234 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1235 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1236 | if (coro == coro_first) coro_first = coro->next; |
|
|
1237 | |
|
|
1238 | return 1; |
821 | } |
1239 | } |
822 | |
1240 | |
823 | static int |
1241 | static int |
824 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1242 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
825 | { |
1243 | { |
826 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1244 | struct coro *coro = (struct coro *)mg->mg_ptr; |
827 | mg->mg_ptr = 0; |
1245 | mg->mg_ptr = 0; |
828 | |
1246 | |
|
|
1247 | coro->hv = 0; |
|
|
1248 | |
|
|
1249 | if (--coro->refcnt < 0) |
|
|
1250 | { |
829 | coro_state_destroy (coro); |
1251 | coro_state_destroy (aTHX_ coro); |
|
|
1252 | Safefree (coro); |
|
|
1253 | } |
830 | |
1254 | |
831 | return 0; |
1255 | return 0; |
832 | } |
1256 | } |
833 | |
1257 | |
834 | static int |
1258 | static int |
… | |
… | |
841 | return 0; |
1265 | return 0; |
842 | } |
1266 | } |
843 | |
1267 | |
844 | static MGVTBL coro_state_vtbl = { |
1268 | static MGVTBL coro_state_vtbl = { |
845 | 0, 0, 0, 0, |
1269 | 0, 0, 0, 0, |
846 | coro_state_clear, |
1270 | coro_state_free, |
847 | 0, |
1271 | 0, |
848 | #ifdef MGf_DUP |
1272 | #ifdef MGf_DUP |
849 | coro_state_dup, |
1273 | coro_state_dup, |
850 | #else |
1274 | #else |
851 | # define MGf_DUP 0 |
1275 | # define MGf_DUP 0 |
852 | #endif |
1276 | #endif |
853 | }; |
1277 | }; |
854 | |
1278 | |
855 | static struct coro * |
|
|
856 | SvSTATE (SV *coro) |
|
|
857 | { |
|
|
858 | HV *stash; |
|
|
859 | MAGIC *mg; |
|
|
860 | |
|
|
861 | if (SvROK (coro)) |
|
|
862 | coro = SvRV (coro); |
|
|
863 | |
|
|
864 | stash = SvSTASH (coro); |
|
|
865 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
866 | { |
|
|
867 | /* very slow, but rare, check */ |
|
|
868 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
869 | croak ("Coro::State object required"); |
|
|
870 | } |
|
|
871 | |
|
|
872 | mg = SvMAGIC (coro); |
|
|
873 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
874 | return (struct coro *)mg->mg_ptr; |
|
|
875 | } |
|
|
876 | |
|
|
877 | static void |
1279 | static void |
878 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1280 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
879 | { |
1281 | { |
880 | ta->prev = SvSTATE (prev_sv); |
1282 | ta->prev = SvSTATE (prev_sv); |
881 | ta->next = SvSTATE (next_sv); |
1283 | ta->next = SvSTATE (next_sv); |
|
|
1284 | TRANSFER_CHECK (*ta); |
882 | } |
1285 | } |
883 | |
1286 | |
884 | static void |
1287 | static void |
885 | api_transfer (SV *prev_sv, SV *next_sv) |
1288 | api_transfer (SV *prev_sv, SV *next_sv) |
886 | { |
1289 | { |
|
|
1290 | dTHX; |
887 | struct transfer_args ta; |
1291 | struct transfer_args ta; |
888 | |
1292 | |
889 | prepare_transfer (&ta, prev_sv, next_sv); |
1293 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
890 | TRANSFER (ta); |
1294 | TRANSFER (ta); |
891 | } |
1295 | } |
892 | |
1296 | |
893 | static int |
|
|
894 | api_save (SV *coro_sv, int new_save) |
|
|
895 | { |
|
|
896 | struct coro *coro = SvSTATE (coro_sv); |
|
|
897 | int old_save = coro->save; |
|
|
898 | |
|
|
899 | if (new_save >= 0) |
|
|
900 | coro->save = new_save; |
|
|
901 | |
|
|
902 | return old_save; |
|
|
903 | } |
|
|
904 | |
|
|
905 | /** Coro ********************************************************************/ |
1297 | /** Coro ********************************************************************/ |
906 | |
1298 | |
907 | #define PRIO_MAX 3 |
|
|
908 | #define PRIO_HIGH 1 |
|
|
909 | #define PRIO_NORMAL 0 |
|
|
910 | #define PRIO_LOW -1 |
|
|
911 | #define PRIO_IDLE -3 |
|
|
912 | #define PRIO_MIN -4 |
|
|
913 | |
|
|
914 | /* for Coro.pm */ |
|
|
915 | static SV *coro_current; |
|
|
916 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
917 | static int coro_nready; |
|
|
918 | |
|
|
919 | static void |
1299 | static void |
920 | coro_enq (SV *coro_sv) |
1300 | coro_enq (pTHX_ SV *coro_sv) |
921 | { |
1301 | { |
922 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1302 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
923 | coro_nready++; |
|
|
924 | } |
1303 | } |
925 | |
1304 | |
926 | static SV * |
1305 | static SV * |
927 | coro_deq (int min_prio) |
1306 | coro_deq (pTHX_ int min_prio) |
928 | { |
1307 | { |
929 | int prio = PRIO_MAX - PRIO_MIN; |
1308 | int prio = PRIO_MAX - PRIO_MIN; |
930 | |
1309 | |
931 | min_prio -= PRIO_MIN; |
1310 | min_prio -= PRIO_MIN; |
932 | if (min_prio < 0) |
1311 | if (min_prio < 0) |
933 | min_prio = 0; |
1312 | min_prio = 0; |
934 | |
1313 | |
935 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1314 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
936 | if (AvFILLp (coro_ready [prio]) >= 0) |
1315 | if (AvFILLp (coro_ready [prio]) >= 0) |
937 | { |
|
|
938 | coro_nready--; |
|
|
939 | return av_shift (coro_ready [prio]); |
1316 | return av_shift (coro_ready [prio]); |
940 | } |
|
|
941 | |
1317 | |
942 | return 0; |
1318 | return 0; |
943 | } |
1319 | } |
944 | |
1320 | |
945 | static int |
1321 | static int |
946 | api_ready (SV *coro_sv) |
1322 | api_ready (SV *coro_sv) |
947 | { |
1323 | { |
|
|
1324 | dTHX; |
948 | struct coro *coro; |
1325 | struct coro *coro; |
949 | |
1326 | |
950 | if (SvROK (coro_sv)) |
1327 | if (SvROK (coro_sv)) |
951 | coro_sv = SvRV (coro_sv); |
1328 | coro_sv = SvRV (coro_sv); |
952 | |
1329 | |
953 | coro = SvSTATE (coro_sv); |
1330 | coro = SvSTATE (coro_sv); |
954 | |
1331 | |
955 | if (coro->flags & CF_READY) |
1332 | if (coro->flags & CF_READY) |
956 | return 0; |
1333 | return 0; |
957 | |
1334 | |
958 | #if 0 /* this is actually harmless */ |
|
|
959 | if (coro->flags & CF_RUNNING) |
|
|
960 | croak ("Coro::ready called on currently running coroutine"); |
|
|
961 | #endif |
|
|
962 | |
|
|
963 | coro->flags |= CF_READY; |
1335 | coro->flags |= CF_READY; |
964 | |
1336 | |
965 | LOCK; |
1337 | LOCK; |
966 | coro_enq (SvREFCNT_inc (coro_sv)); |
1338 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1339 | ++coro_nready; |
967 | UNLOCK; |
1340 | UNLOCK; |
968 | |
1341 | |
969 | return 1; |
1342 | return 1; |
970 | } |
1343 | } |
971 | |
1344 | |
972 | static int |
1345 | static int |
973 | api_is_ready (SV *coro_sv) |
1346 | api_is_ready (SV *coro_sv) |
974 | { |
1347 | { |
|
|
1348 | dTHX; |
975 | return !!SvSTATE (coro_sv)->flags & CF_READY; |
1349 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
976 | } |
1350 | } |
977 | |
1351 | |
978 | static void |
1352 | static void |
979 | prepare_schedule (struct transfer_args *ta) |
1353 | prepare_schedule (pTHX_ struct transfer_args *ta) |
980 | { |
1354 | { |
981 | SV *prev, *next; |
1355 | SV *prev_sv, *next_sv; |
982 | |
1356 | |
983 | for (;;) |
1357 | for (;;) |
984 | { |
1358 | { |
985 | LOCK; |
1359 | LOCK; |
986 | next = coro_deq (PRIO_MIN); |
1360 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1361 | |
|
|
1362 | /* nothing to schedule: call the idle handler */ |
|
|
1363 | if (expect_false (!next_sv)) |
|
|
1364 | { |
|
|
1365 | dSP; |
|
|
1366 | UNLOCK; |
|
|
1367 | |
|
|
1368 | ENTER; |
|
|
1369 | SAVETMPS; |
|
|
1370 | |
|
|
1371 | PUSHMARK (SP); |
|
|
1372 | PUTBACK; |
|
|
1373 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1374 | |
|
|
1375 | FREETMPS; |
|
|
1376 | LEAVE; |
|
|
1377 | continue; |
|
|
1378 | } |
|
|
1379 | |
|
|
1380 | ta->next = SvSTATE (next_sv); |
|
|
1381 | |
|
|
1382 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1383 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1384 | { |
|
|
1385 | UNLOCK; |
|
|
1386 | SvREFCNT_dec (next_sv); |
|
|
1387 | /* coro_nready is already taken care of by destroy */ |
|
|
1388 | continue; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | --coro_nready; |
987 | UNLOCK; |
1392 | UNLOCK; |
988 | |
|
|
989 | if (next) |
|
|
990 | break; |
1393 | break; |
991 | |
|
|
992 | { |
|
|
993 | dSP; |
|
|
994 | |
|
|
995 | ENTER; |
|
|
996 | SAVETMPS; |
|
|
997 | |
|
|
998 | PUSHMARK (SP); |
|
|
999 | PUTBACK; |
|
|
1000 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1001 | |
|
|
1002 | FREETMPS; |
|
|
1003 | LEAVE; |
|
|
1004 | } |
1394 | } |
1005 | } |
|
|
1006 | |
|
|
1007 | prev = SvRV (coro_current); |
|
|
1008 | SvRV_set (coro_current, next); |
|
|
1009 | |
1395 | |
1010 | /* free this only after the transfer */ |
1396 | /* free this only after the transfer */ |
1011 | LOCK; |
1397 | prev_sv = SvRV (coro_current); |
1012 | free_coro_mortal (); |
|
|
1013 | UNLOCK; |
|
|
1014 | coro_mortal = prev; |
|
|
1015 | |
|
|
1016 | assert (!SvROK(prev));//D |
|
|
1017 | assert (!SvROK(next));//D |
|
|
1018 | |
|
|
1019 | ta->prev = SvSTATE (prev); |
1398 | ta->prev = SvSTATE (prev_sv); |
1020 | ta->next = SvSTATE (next); |
1399 | TRANSFER_CHECK (*ta); |
1021 | |
|
|
1022 | assert (ta->next->flags & CF_READY); |
1400 | assert (ta->next->flags & CF_READY); |
1023 | ta->next->flags &= ~CF_READY; |
1401 | ta->next->flags &= ~CF_READY; |
1024 | } |
1402 | SvRV_set (coro_current, next_sv); |
1025 | |
1403 | |
|
|
1404 | LOCK; |
|
|
1405 | free_coro_mortal (aTHX); |
|
|
1406 | coro_mortal = prev_sv; |
|
|
1407 | UNLOCK; |
|
|
1408 | } |
|
|
1409 | |
1026 | static void |
1410 | static void |
1027 | prepare_cede (struct transfer_args *ta) |
1411 | prepare_cede (pTHX_ struct transfer_args *ta) |
1028 | { |
1412 | { |
1029 | api_ready (coro_current); |
1413 | api_ready (coro_current); |
1030 | |
|
|
1031 | prepare_schedule (ta); |
1414 | prepare_schedule (aTHX_ ta); |
|
|
1415 | } |
|
|
1416 | |
|
|
1417 | static int |
|
|
1418 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1419 | { |
|
|
1420 | if (coro_nready) |
|
|
1421 | { |
|
|
1422 | SV *prev = SvRV (coro_current); |
|
|
1423 | prepare_schedule (aTHX_ ta); |
|
|
1424 | api_ready (prev); |
|
|
1425 | return 1; |
|
|
1426 | } |
|
|
1427 | else |
|
|
1428 | return 0; |
1032 | } |
1429 | } |
1033 | |
1430 | |
1034 | static void |
1431 | static void |
1035 | api_schedule (void) |
1432 | api_schedule (void) |
1036 | { |
1433 | { |
|
|
1434 | dTHX; |
1037 | struct transfer_args ta; |
1435 | struct transfer_args ta; |
1038 | |
1436 | |
1039 | prepare_schedule (&ta); |
1437 | prepare_schedule (aTHX_ &ta); |
1040 | TRANSFER (ta); |
1438 | TRANSFER (ta); |
1041 | } |
1439 | } |
1042 | |
1440 | |
1043 | static void |
1441 | static int |
1044 | api_cede (void) |
1442 | api_cede (void) |
1045 | { |
1443 | { |
|
|
1444 | dTHX; |
1046 | struct transfer_args ta; |
1445 | struct transfer_args ta; |
1047 | |
1446 | |
1048 | prepare_cede (&ta); |
1447 | prepare_cede (aTHX_ &ta); |
|
|
1448 | |
|
|
1449 | if (expect_true (ta.prev != ta.next)) |
|
|
1450 | { |
1049 | TRANSFER (ta); |
1451 | TRANSFER (ta); |
|
|
1452 | return 1; |
|
|
1453 | } |
|
|
1454 | else |
|
|
1455 | return 0; |
1050 | } |
1456 | } |
1051 | |
1457 | |
|
|
1458 | static int |
|
|
1459 | api_cede_notself (void) |
|
|
1460 | { |
|
|
1461 | dTHX; |
|
|
1462 | struct transfer_args ta; |
|
|
1463 | |
|
|
1464 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1465 | { |
|
|
1466 | TRANSFER (ta); |
|
|
1467 | return 1; |
|
|
1468 | } |
|
|
1469 | else |
|
|
1470 | return 0; |
|
|
1471 | } |
|
|
1472 | |
|
|
1473 | static void |
|
|
1474 | api_trace (SV *coro_sv, int flags) |
|
|
1475 | { |
|
|
1476 | dTHX; |
|
|
1477 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1478 | |
|
|
1479 | if (flags & CC_TRACE) |
|
|
1480 | { |
|
|
1481 | if (!coro->cctx) |
|
|
1482 | coro->cctx = cctx_new (); |
|
|
1483 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1484 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1485 | |
|
|
1486 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1487 | } |
|
|
1488 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1489 | { |
|
|
1490 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1491 | |
|
|
1492 | if (coro->flags & CF_RUNNING) |
|
|
1493 | PL_runops = RUNOPS_DEFAULT; |
|
|
1494 | else |
|
|
1495 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1496 | } |
|
|
1497 | } |
|
|
1498 | |
1052 | MODULE = Coro::State PACKAGE = Coro::State |
1499 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1053 | |
1500 | |
1054 | PROTOTYPES: DISABLE |
1501 | PROTOTYPES: DISABLE |
1055 | |
1502 | |
1056 | BOOT: |
1503 | BOOT: |
1057 | { |
1504 | { |
1058 | #ifdef USE_ITHREADS |
1505 | #ifdef USE_ITHREADS |
1059 | MUTEX_INIT (&coro_mutex); |
1506 | MUTEX_INIT (&coro_mutex); |
1060 | #endif |
1507 | #endif |
1061 | BOOT_PAGESIZE; |
1508 | BOOT_PAGESIZE; |
1062 | |
1509 | |
|
|
1510 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1511 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1512 | |
|
|
1513 | hv_sig = coro_get_hv ("SIG", TRUE); |
|
|
1514 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
|
|
1515 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
|
|
1516 | |
|
|
1517 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1518 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1519 | |
1063 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1520 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1064 | |
1521 | |
|
|
1522 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1523 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1065 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1524 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1066 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1067 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1068 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1069 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1525 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1070 | |
1526 | |
1071 | main_mainstack = PL_mainstack; |
1527 | main_mainstack = PL_mainstack; |
|
|
1528 | main_top_env = PL_top_env; |
|
|
1529 | |
|
|
1530 | while (main_top_env->je_prev) |
|
|
1531 | main_top_env = main_top_env->je_prev; |
1072 | |
1532 | |
1073 | coroapi.ver = CORO_API_VERSION; |
1533 | coroapi.ver = CORO_API_VERSION; |
|
|
1534 | coroapi.rev = CORO_API_REVISION; |
1074 | coroapi.transfer = api_transfer; |
1535 | coroapi.transfer = api_transfer; |
1075 | |
1536 | |
1076 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1537 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1077 | } |
1538 | } |
1078 | |
1539 | |
… | |
… | |
1083 | struct coro *coro; |
1544 | struct coro *coro; |
1084 | HV *hv; |
1545 | HV *hv; |
1085 | int i; |
1546 | int i; |
1086 | |
1547 | |
1087 | Newz (0, coro, 1, struct coro); |
1548 | Newz (0, coro, 1, struct coro); |
1088 | coro->args = newAV (); |
1549 | coro->args = newAV (); |
1089 | coro->save = CORO_SAVE_ALL; |
|
|
1090 | coro->flags = CF_NEW; |
1550 | coro->flags = CF_NEW; |
1091 | |
1551 | |
|
|
1552 | if (coro_first) coro_first->prev = coro; |
|
|
1553 | coro->next = coro_first; |
|
|
1554 | coro_first = coro; |
|
|
1555 | |
1092 | hv = newHV (); |
1556 | coro->hv = hv = newHV (); |
1093 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1557 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1094 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1558 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1095 | |
1559 | |
|
|
1560 | av_extend (coro->args, items - 1); |
1096 | for (i = 1; i < items; i++) |
1561 | for (i = 1; i < items; i++) |
1097 | av_push (coro->args, newSVsv (ST (i))); |
1562 | av_push (coro->args, newSVsv (ST (i))); |
1098 | } |
1563 | } |
1099 | OUTPUT: |
1564 | OUTPUT: |
1100 | RETVAL |
1565 | RETVAL |
1101 | |
1566 | |
1102 | int |
1567 | # these not obviously related functions are all rolled into the same xs |
1103 | save (SV *coro, int new_save = -1) |
1568 | # function to increase chances that they all will call transfer with the same |
1104 | CODE: |
1569 | # stack offset |
1105 | RETVAL = api_save (coro, new_save); |
|
|
1106 | OUTPUT: |
|
|
1107 | RETVAL |
|
|
1108 | |
|
|
1109 | void |
1570 | void |
1110 | _set_stacklevel (...) |
1571 | _set_stacklevel (...) |
1111 | ALIAS: |
1572 | ALIAS: |
1112 | Coro::State::transfer = 1 |
1573 | Coro::State::transfer = 1 |
1113 | Coro::schedule = 2 |
1574 | Coro::schedule = 2 |
1114 | Coro::cede = 3 |
1575 | Coro::cede = 3 |
|
|
1576 | Coro::cede_notself = 4 |
1115 | CODE: |
1577 | CODE: |
1116 | { |
1578 | { |
1117 | struct transfer_args ta; |
1579 | struct transfer_args ta; |
1118 | |
1580 | |
1119 | switch (ix) |
1581 | switch (ix) |
… | |
… | |
1125 | |
1587 | |
1126 | case 1: |
1588 | case 1: |
1127 | if (items != 2) |
1589 | if (items != 2) |
1128 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1590 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1129 | |
1591 | |
1130 | prepare_transfer (&ta, ST (0), ST (1)); |
1592 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1131 | break; |
1593 | break; |
1132 | |
1594 | |
1133 | case 2: |
1595 | case 2: |
1134 | prepare_schedule (&ta); |
1596 | prepare_schedule (aTHX_ &ta); |
1135 | break; |
1597 | break; |
1136 | |
1598 | |
1137 | case 3: |
1599 | case 3: |
1138 | prepare_cede (&ta); |
1600 | prepare_cede (aTHX_ &ta); |
|
|
1601 | break; |
|
|
1602 | |
|
|
1603 | case 4: |
|
|
1604 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1605 | XSRETURN_EMPTY; |
|
|
1606 | |
1139 | break; |
1607 | break; |
1140 | } |
1608 | } |
1141 | |
1609 | |
|
|
1610 | BARRIER; |
|
|
1611 | PUTBACK; |
1142 | TRANSFER (ta); |
1612 | TRANSFER (ta); |
|
|
1613 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1614 | /* be extra careful not to ever do anything after TRANSFER */ |
1143 | } |
1615 | } |
1144 | |
1616 | |
1145 | void |
1617 | bool |
1146 | _clone_state_from (SV *dst, SV *src) |
1618 | _destroy (SV *coro_sv) |
1147 | CODE: |
1619 | CODE: |
1148 | { |
1620 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1149 | struct coro *coro_src = SvSTATE (src); |
1621 | OUTPUT: |
1150 | |
1622 | RETVAL |
1151 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1152 | |
|
|
1153 | ++coro_src->refcnt; |
|
|
1154 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1155 | } |
|
|
1156 | |
1623 | |
1157 | void |
1624 | void |
1158 | _exit (code) |
1625 | _exit (code) |
1159 | int code |
1626 | int code |
1160 | PROTOTYPE: $ |
1627 | PROTOTYPE: $ |
1161 | CODE: |
1628 | CODE: |
1162 | _exit (code); |
1629 | _exit (code); |
1163 | |
1630 | |
1164 | int |
1631 | int |
|
|
1632 | cctx_stacksize (int new_stacksize = 0) |
|
|
1633 | CODE: |
|
|
1634 | RETVAL = coro_stacksize; |
|
|
1635 | if (new_stacksize) |
|
|
1636 | coro_stacksize = new_stacksize; |
|
|
1637 | OUTPUT: |
|
|
1638 | RETVAL |
|
|
1639 | |
|
|
1640 | int |
1165 | cctx_count () |
1641 | cctx_count () |
1166 | CODE: |
1642 | CODE: |
1167 | RETVAL = cctx_count; |
1643 | RETVAL = cctx_count; |
1168 | OUTPUT: |
1644 | OUTPUT: |
1169 | RETVAL |
1645 | RETVAL |
… | |
… | |
1173 | CODE: |
1649 | CODE: |
1174 | RETVAL = cctx_idle; |
1650 | RETVAL = cctx_idle; |
1175 | OUTPUT: |
1651 | OUTPUT: |
1176 | RETVAL |
1652 | RETVAL |
1177 | |
1653 | |
|
|
1654 | void |
|
|
1655 | list () |
|
|
1656 | PPCODE: |
|
|
1657 | { |
|
|
1658 | struct coro *coro; |
|
|
1659 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1660 | if (coro->hv) |
|
|
1661 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1662 | } |
|
|
1663 | |
|
|
1664 | void |
|
|
1665 | call (Coro::State coro, SV *coderef) |
|
|
1666 | ALIAS: |
|
|
1667 | eval = 1 |
|
|
1668 | CODE: |
|
|
1669 | { |
|
|
1670 | if (coro->mainstack) |
|
|
1671 | { |
|
|
1672 | struct coro temp; |
|
|
1673 | |
|
|
1674 | if (!(coro->flags & CF_RUNNING)) |
|
|
1675 | { |
|
|
1676 | save_perl (aTHX_ &temp); |
|
|
1677 | load_perl (aTHX_ coro); |
|
|
1678 | } |
|
|
1679 | |
|
|
1680 | { |
|
|
1681 | dSP; |
|
|
1682 | ENTER; |
|
|
1683 | SAVETMPS; |
|
|
1684 | PUTBACK; |
|
|
1685 | PUSHSTACK; |
|
|
1686 | PUSHMARK (SP); |
|
|
1687 | |
|
|
1688 | if (ix) |
|
|
1689 | eval_sv (coderef, 0); |
|
|
1690 | else |
|
|
1691 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1692 | |
|
|
1693 | POPSTACK; |
|
|
1694 | SPAGAIN; |
|
|
1695 | FREETMPS; |
|
|
1696 | LEAVE; |
|
|
1697 | PUTBACK; |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | if (!(coro->flags & CF_RUNNING)) |
|
|
1701 | { |
|
|
1702 | save_perl (aTHX_ coro); |
|
|
1703 | load_perl (aTHX_ &temp); |
|
|
1704 | } |
|
|
1705 | } |
|
|
1706 | } |
|
|
1707 | |
|
|
1708 | SV * |
|
|
1709 | is_ready (Coro::State coro) |
|
|
1710 | PROTOTYPE: $ |
|
|
1711 | ALIAS: |
|
|
1712 | is_ready = CF_READY |
|
|
1713 | is_running = CF_RUNNING |
|
|
1714 | is_new = CF_NEW |
|
|
1715 | is_destroyed = CF_DESTROYED |
|
|
1716 | CODE: |
|
|
1717 | RETVAL = boolSV (coro->flags & ix); |
|
|
1718 | OUTPUT: |
|
|
1719 | RETVAL |
|
|
1720 | |
|
|
1721 | void |
|
|
1722 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1723 | |
|
|
1724 | SV * |
|
|
1725 | has_stack (Coro::State coro) |
|
|
1726 | PROTOTYPE: $ |
|
|
1727 | CODE: |
|
|
1728 | RETVAL = boolSV (!!coro->cctx); |
|
|
1729 | OUTPUT: |
|
|
1730 | RETVAL |
|
|
1731 | |
|
|
1732 | int |
|
|
1733 | is_traced (Coro::State coro) |
|
|
1734 | PROTOTYPE: $ |
|
|
1735 | CODE: |
|
|
1736 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1737 | OUTPUT: |
|
|
1738 | RETVAL |
|
|
1739 | |
|
|
1740 | IV |
|
|
1741 | rss (Coro::State coro) |
|
|
1742 | PROTOTYPE: $ |
|
|
1743 | ALIAS: |
|
|
1744 | usecount = 1 |
|
|
1745 | CODE: |
|
|
1746 | switch (ix) |
|
|
1747 | { |
|
|
1748 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1749 | case 1: RETVAL = coro->usecount; break; |
|
|
1750 | } |
|
|
1751 | OUTPUT: |
|
|
1752 | RETVAL |
|
|
1753 | |
|
|
1754 | |
1178 | MODULE = Coro::State PACKAGE = Coro |
1755 | MODULE = Coro::State PACKAGE = Coro |
1179 | |
1756 | |
1180 | BOOT: |
1757 | BOOT: |
1181 | { |
1758 | { |
1182 | int i; |
1759 | int i; |
1183 | |
1760 | |
|
|
1761 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1762 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1763 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
|
|
1764 | |
|
|
1765 | coro_current = coro_get_sv ("Coro::current", FALSE); |
|
|
1766 | SvREADONLY_on (coro_current); |
|
|
1767 | |
1184 | coro_stash = gv_stashpv ("Coro", TRUE); |
1768 | coro_stash = gv_stashpv ("Coro", TRUE); |
1185 | |
1769 | |
1186 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1770 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1187 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1771 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1188 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1772 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1189 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1773 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1190 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1774 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1191 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1775 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1192 | |
1776 | |
1193 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1194 | SvREADONLY_on (coro_current); |
|
|
1195 | |
|
|
1196 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1777 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1197 | coro_ready[i] = newAV (); |
1778 | coro_ready[i] = newAV (); |
1198 | |
1779 | |
1199 | { |
1780 | { |
1200 | SV *sv = perl_get_sv("Coro::API", 1); |
1781 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1782 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1201 | |
1783 | |
1202 | coroapi.schedule = api_schedule; |
1784 | coroapi.schedule = api_schedule; |
1203 | coroapi.save = api_save; |
|
|
1204 | coroapi.cede = api_cede; |
1785 | coroapi.cede = api_cede; |
|
|
1786 | coroapi.cede_notself = api_cede_notself; |
1205 | coroapi.ready = api_ready; |
1787 | coroapi.ready = api_ready; |
1206 | coroapi.is_ready = api_is_ready; |
1788 | coroapi.is_ready = api_is_ready; |
1207 | coroapi.nready = &coro_nready; |
1789 | coroapi.nready = &coro_nready; |
1208 | coroapi.current = coro_current; |
1790 | coroapi.current = coro_current; |
1209 | |
1791 | |
1210 | GCoroAPI = &coroapi; |
1792 | GCoroAPI = &coroapi; |
1211 | sv_setiv (sv, (IV)&coroapi); |
1793 | sv_setiv (sv, (IV)&coroapi); |
1212 | SvREADONLY_on (sv); |
1794 | SvREADONLY_on (sv); |
1213 | } |
1795 | } |
… | |
… | |
1229 | RETVAL = coro->prio; |
1811 | RETVAL = coro->prio; |
1230 | |
1812 | |
1231 | if (items > 1) |
1813 | if (items > 1) |
1232 | { |
1814 | { |
1233 | if (ix) |
1815 | if (ix) |
1234 | newprio += coro->prio; |
1816 | newprio = coro->prio - newprio; |
1235 | |
1817 | |
1236 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1818 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1237 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1819 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1238 | |
1820 | |
1239 | coro->prio = newprio; |
1821 | coro->prio = newprio; |
1240 | } |
1822 | } |
1241 | } |
1823 | } |
|
|
1824 | OUTPUT: |
|
|
1825 | RETVAL |
1242 | |
1826 | |
1243 | SV * |
1827 | SV * |
1244 | ready (SV *self) |
1828 | ready (SV *self) |
1245 | PROTOTYPE: $ |
1829 | PROTOTYPE: $ |
1246 | CODE: |
1830 | CODE: |
1247 | RETVAL = boolSV (api_ready (self)); |
1831 | RETVAL = boolSV (api_ready (self)); |
1248 | OUTPUT: |
1832 | OUTPUT: |
1249 | RETVAL |
1833 | RETVAL |
1250 | |
1834 | |
1251 | SV * |
|
|
1252 | is_ready (SV *self) |
|
|
1253 | PROTOTYPE: $ |
|
|
1254 | CODE: |
|
|
1255 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1256 | OUTPUT: |
|
|
1257 | RETVAL |
|
|
1258 | |
|
|
1259 | int |
1835 | int |
1260 | nready (...) |
1836 | nready (...) |
1261 | PROTOTYPE: |
1837 | PROTOTYPE: |
1262 | CODE: |
1838 | CODE: |
1263 | RETVAL = coro_nready; |
1839 | RETVAL = coro_nready; |
1264 | OUTPUT: |
1840 | OUTPUT: |
1265 | RETVAL |
1841 | RETVAL |
1266 | |
1842 | |
|
|
1843 | void |
|
|
1844 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1845 | PROTOTYPE: $;$ |
|
|
1846 | CODE: |
|
|
1847 | SvREFCNT_dec (self->throw); |
|
|
1848 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1849 | |
|
|
1850 | # for async_pool speedup |
|
|
1851 | void |
|
|
1852 | _pool_1 (SV *cb) |
|
|
1853 | CODE: |
|
|
1854 | { |
|
|
1855 | struct coro *coro = SvSTATE (coro_current); |
|
|
1856 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1857 | AV *defav = GvAV (PL_defgv); |
|
|
1858 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
|
|
1859 | AV *invoke_av; |
|
|
1860 | int i, len; |
|
|
1861 | |
|
|
1862 | if (!invoke) |
|
|
1863 | croak ("\3async_pool terminate\2\n"); |
|
|
1864 | |
|
|
1865 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1866 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1867 | |
|
|
1868 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1869 | newSVpvn (strpair ("[async_pool]")), 0); |
|
|
1870 | |
|
|
1871 | invoke_av = (AV *)SvRV (invoke); |
|
|
1872 | len = av_len (invoke_av); |
|
|
1873 | |
|
|
1874 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1875 | |
|
|
1876 | if (len > 0) |
|
|
1877 | { |
|
|
1878 | av_fill (defav, len - 1); |
|
|
1879 | for (i = 0; i < len; ++i) |
|
|
1880 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | SvREFCNT_dec (invoke); |
|
|
1884 | } |
|
|
1885 | |
|
|
1886 | void |
|
|
1887 | _pool_2 (SV *cb) |
|
|
1888 | CODE: |
|
|
1889 | { |
|
|
1890 | struct coro *coro = SvSTATE (coro_current); |
|
|
1891 | |
|
|
1892 | sv_setsv (cb, &PL_sv_undef); |
|
|
1893 | |
|
|
1894 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1895 | coro->saved_deffh = 0; |
|
|
1896 | |
|
|
1897 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1898 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1899 | croak ("\3async_pool terminate\2\n"); |
|
|
1900 | |
|
|
1901 | av_clear (GvAV (PL_defgv)); |
|
|
1902 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
|
|
1903 | newSVpvn (strpair ("[async_pool idle]")), 0); |
|
|
1904 | |
|
|
1905 | coro->prio = 0; |
|
|
1906 | |
|
|
1907 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1908 | api_trace (coro_current, 0); |
|
|
1909 | |
|
|
1910 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | |
1267 | MODULE = Coro::State PACKAGE = Coro::AIO |
1914 | MODULE = Coro::State PACKAGE = Coro::AIO |
1268 | |
1915 | |
1269 | SV * |
1916 | SV * |
1270 | _get_state () |
1917 | _get_state () |
1271 | CODE: |
1918 | CODE: |